Soyu will be featured in a track on K.Will's upcoming album 'Nonfiction'.

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On September 20, Starship Entertainment confirmed the two labelmates collaborated for K.Will's comeback, stating, "It's true that Soyu featured in K.Will's new track." The former SISTAR member and K.Will's collaborative track was composed by hit producer Primary.

K.Will is returning with his new album 'Part 1. Nonfiction' on September 26 KST.